38results about How to "Avoid cleansing effect" patented technology

The invention relates to a preparation method of bensulfuron methyl molecularly imprinted polymer and application thereof. The preparation method includes steps of dissolving one or more functional monomers and bensulfuron methyl in a solvent, respectively adding a crosslinking agent, an initiator and a dispersing agent, mixing and dissolving by supersonic wave, aerating N2 to protect, heating or using ultraviolet radiation to initiate polymerization reaction, eluting template molecule, and drying in vacuum to obtain the bensulfuron methyl molecularly imprinted polymer. The purification and enrichment effects of the bensulfuron methyl molecularly imprinted polymer to sulfonylurea herbicides is obviously better than present nonspecific C18 column, silica gel column, and magnesium silicate column, thereby increasing detection limit and sensitivity of analysis instrument.

The invention provides a method for preparing building cementitious materials from ardealite by means of artificial quartzite slurry modification. The ardealite is industrial solid waste and is used as a main raw material for the building cementitious materials. The method includes drying and grinding the ardealite which is the industrial byproduct waste, uniformly mixing the ardealite, cement andindustrial byproducts such as slag powder and fly ash with one another to obtain mixtures, adding the mixtures into water and blending the mixtures and the water to obtain thick slurry; mixing silicafume with artificial quartzite slurry under high-speed stirring conditions and activating the artificial quartzite slurry; sufficiently mixing and homogenizing the thick slurry and the artificial quartzite slurry with each other, then adding polymeric aluminum and / or other aluminum salt and polycarboxylic acid water reducing agents into the thick slurry and the artificial quartzite slurry and uniformly stirring the polymeric aluminum and / or the other aluminum salt, the polycarboxylic acid water reducing agents, the thick slurry and the artificial quartzite slurry to obtain the plastic cementitious materials with short coagulation time and high strength and ardealite dosage. The silica fume is an industrial byproduct. The polymeric aluminum and / or the other aluminum salt are used as admixtures. The method has the advantages that the ardealite can be directly used after being dried and ground without earlier-stage purification and ageing treatment, accordingly, the production cycle canbe shortened to a great extent, and the cost can be reduced; the building cementitious materials are high in industrial solid waste mixing amount, the optimal industrial solid waste mixing amount canreach 80%, in other words, 80% of the traditional silicate cement can be replaced, and the method has important significance in saving resources, increasing the industrial solid waste comprehensive utilization rate and protecting environments.

The invention discloses an air purifying system used for an operating room and a control method thereof. The air purifying system comprises a central controller, a data base, a pollution factor analysis unit, a risk analysis unit and an air purifying unit. The data base comprises a data extraction module. The pollution factor analysis unit comprises a sensor module and an analysis module. The air purifying unit comprises an air replacement module, an air purifying module and an air storage module. The control method of the air purifying system used for the operating room comprises the following steps of (1) sealing of the operating room and closing of a door of the operating room; (2) air pollution factor analyzing; (3) risk analyzing; and (4) air purifying. According to the air purifying system used for the operating room and the control method thereof, the air purifying system is redesigned, the air quality can be monitored, and risk results possibly caused by the air quality are analyzed so that air purifying can be implemented by medical workers according to the risk results conveniently, intelligent operating is realized, operation is convenient, and the problems of excessive purification and insufficient purification can be avoided. Meanwhile, the air purifying system provided by the invention is high in purification efficiency and pertinence.

The invention discloses a drinking water storage tank, which realizes the purposes of pollution prevention, filtering and water purification. The drinking water storage tank comprises an inner tank body and an outer tank body which are respectively provided with a communication port; a flow guide noise elimination spiral plate surrounding the inner tank body is arranged in a space formed by the outer wall of the inner tank body and the inner wall of the outer tank body; the inner edge and the outer edge of the spiral plate are respectively connected with the outer wall of the inner tank body and the inner wall of the outer tank body; and a water inlet is formed in the outer tank body, and a water outlet is formed in the inner tank body. The drinking water storage tank can substitute a mounted flow stabilizing tank required by a common water tank, and has good use effects on pollution prevention, filtering and water purification; and in addition, owing to the spiral plate arranged in the outer tank body, a certain noise pollution can be reduced during injecting water into the water storage tank.

The invention provides a method for recovering space-consuming heat-dissipating working fluid based on flexible and recyclable materials. The specific process is: (1) According to the peak heat load, working time, working medium type and working temperature of the spacecraft thermal control system Estimate the quality of the required liquid working fluid; (2) Set the maximum working back pressure according to the demand of the consumable cooling device for working back pressure; Estimate the volume of the generated gaseous working medium; (3) select a flexible material to design a space-consuming heat dissipation working medium recovery device, so that the internal volume of the recovery device in a naturally extended state is greater than or equal to the volume of the gaseous working medium; (4) The working medium recovery device is used in conjunction with the space-consuming heat sink to realize the recovery and reuse of the space-consuming working medium. The invention provides indispensable technical support for the application of the space-consuming heat dissipation method in long-term space missions.

The invention relates to the technical field of preparation of inorganic materials, specifically a kind of Mg 6 al 2 (OH) 18 4.5H 2 O nanosheets and their preparation method and application. In the method, magnesium nitrate or magnesium chloride is used as a magnesium source, aluminum nitrate or aluminum chloride is used as an aluminum source, and sodium hydroxide is used as an alkaline medium. Quickly back drop into the sodium hydroxide solution, wash the obtained precipitate and redisperse it in the water containing ethylene glycol, after heat treatment in the microwave hydrothermal parallel synthesizer, then carry out the hydrothermal treatment, and then put it in the preparation of nano-dioxide Mg is obtained after heating in the microemulsion of silicon 6 al 2 (OH) 18 4.5H 2 O nanosheets. The preparation method of the present invention is special, the reaction conditions are easy to control, the raw materials are easy to obtain, and the reproducibility is good. The prepared nanosheets are thin and have good dispersibility, and are expected to be applied to the fields of flame-retardant materials such as polypropylene and other plastics.